Abnormal levels of a protein linked to C.T.E. found in N.F.L players’ brains, study shows

“There’s a lot of lower-level head trauma out there that no one knows the consequence of,” says John Q. Trojanowski of PARC in a New York Times article. Trojanowski plans to submit a research paper in the coming months on people who have suffered traumatic brain injury. “We are looking at people with traumatic brain injury, football players, rugby players, some people who fell off bikes.”